Author Question: The electrical disconnect box for a rooftop unit A) is mounted on the unit B) is not required for ... (Read 137 times)

cagreen833 · **on:** Jul 27, 2018

The electrical disconnect box for a rooftop unit

A) is mounted on the unit B) is not required for rooftop installations
C) is mounted on a separate post next to the unit D) is located inside to protect it from the weather

Question 2

When installing units requiring three phase power, the voltages between any two power leads must be

A) within 15 of each other B) Exactly the same
C) within 3 of each other D) within 10 of each other